IbrahimK. G., AbdullahiI., Sani Usman, and Sule Bashir. 2022. “DETERMINATION OF AN UNKNOWN DIFFUSION COEFFICIENT IN A PARABOLIC INVERSE PROBLEM”. FUDMA JOURNAL OF SCIENCES 5 (4), 291 -99. https://doi.org/10.33003/fjs-2021-0504-834.